Research data supporting 'High-Bandwidth Low-Cost High-Speed Optical Fiber Links using Organic Light Emitting Diodes'

Research data supporting 'High-Bandwidth Low-Cost High-Speed Optical Fiber Links using Organic Light Emitting Diodes'. Fig. 1c data is current and voltage measurements for the three areas (0.12 mm2, 1.1 mm2, 9 mm2) of OLED. Fig. 1d data is the 3dB electrical bandwidth measurement for each bias current for the three areas of OLED, measured according to S21 measurements using a vector network analyser. Fig. 2b & 2c data is the equivalent RC circuit that obtains the bandwidth of the measured OLEDs. The capacitance is the equivalent small signal capacitance measured according to high frequency S11 measurements from the vector network analyser. The resistance parameters are fit to the measured bandwidths of fig 1d. Fig. 2d data refers to the 0.12 mm2 OLED and plots the measured S21 frequency response (columns AF-AH) against the S21 model defined by the equivalent RC circuit predicted in the previous sheet (Fig. 2b 2c), according to a standard [1/(1+jwRC)] model, calculated in columns Q-S. This is added to the standard response of a 100kHz high-pass filter (V-X) to calculate the total modelled response (Col AA-AC). Fig. 2e and Fig 2f data plots the same as Fig. 2d, but for the 1.1 mm2 and 9 mm2 OLEDs, respectively. Fig. 3b plots the Bit Error Rate (BER) against the Data Rate. The BER (col. C) is calculated according to the Q-factor (col. B), which is calculated according to the standard equation Q = [mu1-mu0]/[sig1-sig0], where mu1,0 and sig1,0 refer to the mean and standard deviation of the received signal bit 1 and bit 0. The eye pattern of Fiv 3b is plotted according to the raw data from the oscilloscope at 80 Mbps transmission. The plotted values are seen in cols. H-OP for multiple data sequences, with time recorded in col. G. The data in Fig 4a plots the unequalised eye-pattern at 140 Mbps for 349 sequences [cols C-MM]. Fig. 4b passes the data in fig 4a through a 3-tap feedforward equaliser with tap coefficients defined in row [1] of this sheet, and receives the output data as defined in cols C-ML. This is repeated for Fig 4c & 4d at 200 Mbps.

本数据集为论文《基于有机发光二极管的高速光纤链路：高带宽、低成本方案》（英文原名：High-Bandwidth Low-Cost High-Speed Optical Fiber Links using Organic Light Emitting Diodes）提供研究支撑。

图1c的数据为三种面积（0.12 mm²、1.1 mm²、9 mm²）的有机发光二极管（Organic Light Emitting Diodes, OLED）的电流与电压测量结果。
图1d的数据为三种面积的OLED在不同偏置电流下的3dB电带宽测量值，该测试通过矢量网络分析仪（vector network analyser）基于S21参数完成。
图2b与图2c的数据为等效RC电路，用于推导被测OLED的带宽；其中电容参数为通过矢量网络分析仪的高频S11测试得到的等效小信号电容，电阻参数则根据图1d的实测带宽拟合得到。
图2d对应0.12 mm²的OLED，将实测的S21频率响应（列AF至AH）与前文（图2b、2c）中基于标准$[1/(1+jomega RC)]$模型构建的等效RC电路的S21模型（列Q至S）进行对比绘图；随后将该结果与100kHz高通滤波器的标准响应（列V至X）结合，计算得到总建模响应（列AA至AC）。
图2e与图2f的绘图逻辑与图2d一致，分别对应1.1 mm²和9 mm²的OLED。
图3b以误码率（Bit Error Rate, BER）为纵轴、数据速率为横轴绘制曲线；其中误码率（列C）由Q因子（列B）计算得到，Q因子的标准计算公式为$Q = [mu_1-mu_0]/[sigma_1-sigma_0]$，其中$mu_{1,0}$与$sigma_{1,0}$分别为接收信号中比特1和比特0的均值与标准差。该图的眼图（eye pattern）基于80 Mbps传输时示波器采集的原始数据绘制，实测值分布于列H至OP，时间轴数据记录于列G。
图4a绘制了349个序列下140 Mbps速率的非均衡眼图（列C至MM）。
图4b将图4a中的数据通过一个3抽头前馈均衡器（feedforward equaliser，抽头系数定义于本工作表第1行）进行处理，输出数据记录于列C至ML；该流程同样应用于200 Mbps速率下的图4c与图4d。